This looks like the best list offered so far. These are players who have come from the northern hemisphere to the NRL with a good reputation, and subsequently left the NRL and made an even better reputation for themselves back in the northern hemisphere.

For example Remi Casty, after an oustanding year for the Catalans, made the 2018 Super League Dream Team.

He was never even given a NSW jersey. Top try scorer 2 years in a row.

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Blacklock was good, just not great. I mean how many players who have finished as top try scorer didn't earn representative honours? Quite a few I dare say. Blacklock was an "old school" winger in that he was more of a finisher, and when he was at the height of his talents was at the time when the role of winger was changing due to guys like Sailor and Tuqiri where wingers were expected to be more than finishers.